Koyo
FOR REFERENCE ONLY
  • Tapered roller bearings
  • Single-row
  • Inch series


Bearing No. 08125/231

Specification data (main dimensions, etc.)

d(mm)31.750
D(mm)58.738
T(mm)14.684
B(mm)15.080
C(mm)10.716
r(min.)(mm)1.0
r1(min.)(mm)1.0
Basic load ratings : Cr(kN)37.0
Basic load ratings : C0r(kN)33.3
Fatigue load limit : Cu(kN)4.60
Limiting speeds(Grease lub.)(min-1)6600
Limiting speeds(Oil lub.)(min-1)8900
Load center spread : a(mm)13.5
Constant :e0.48
Axial load factors : Y11.26
Axial load factors : Y00.69

Mounting dimensions,weight (reference)

da(mm)37.5 mm
db(mm)36.0 mm
Da(mm)52.0 mm
Db(mm)55.0 mm
ra(max.)(mm)1.0 mm
rb(max.)(mm)1.0 mm
Mass(Refer.)(kg)0.165 kg
JTEKT

2026/07/19